A device for testing the combustion of a building material product
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOHE DIPU ENG TESTING CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-07
AI Technical Summary
燃烧试验装置则是用于建筑材料耐火特性的测试,可用来测试建筑材料产品暴露于热源的耐火性能等,燃烧试验时通常是将试验样品放在小车上,再将小车推入燃烧室内,利用点火器对小车上的试验样品进行燃烧,目前大多数燃烧试验装置在燃烧试验的过程中,试验样品的位置是固定不动的,无法实现对试验样品进行多角度燃烧试验
通过调节机构的设置,转动压紧组件的压紧螺杆,使压紧板沿限位杆移动,将建材固定在固定架上,步进电机驱动转杆转动,带动固定架进行转动,转杆在转动过程中,拨动限位销,并配合转杆上开设的限位凹槽,可实现多角度调节限位,从而满足多角度燃烧试验的需求,提高了燃烧试验装置的实用性。
Smart Images

Figure CN224609065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building materials production technology, and in particular to a combustion testing device for building materials products. Background Technology
[0002] Building materials are a general term for materials used in civil engineering and construction. They can be divided into structural materials, decorative materials, and certain specialized materials. Their characteristics include high strength, good durability, excellent thermal insulation, sound insulation, energy efficiency, wide environmental adaptability, and good functional adaptability. When using building materials, individual combustion tests are required. Combustion testing equipment is used to test the fire resistance characteristics of building materials, such as their fire resistance when exposed to heat sources. During combustion testing, the test sample is typically placed on a trolley, which is then pushed into the combustion chamber. An igniter is used to ignite the sample. Currently, most combustion testing equipment keeps the test sample stationary during the combustion test, making it impossible to perform multi-angle combustion tests. Utility Model Content
[0003] The purpose of this invention is to provide a combustion testing device for building materials in order to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions: A combustion test device for building materials includes a combustion chamber, a flue, and an observation window. It also includes a slide rail fixed to the bottom of the combustion chamber. An ignition frame is fixed to one side inside the combustion chamber, and an igniter is mounted on the ignition frame. A base plate is located above the slide rail, and a transmission mechanism is located on the lower surface of the base plate. The transmission mechanism includes multiple sets of roller frames and a transmission box fixed to the lower surface of the base plate. Rollers are mounted opposite each other on the roller frames. A rotating shaft runs through the transmission box, and a turbine is mounted on the rotating shaft. A worm gear is mounted opposite each other above the turbine, and one end of the worm gear is connected to a power component. An adjustment mechanism is located on the base plate, including two sets of support frames fixed to the base plate. A rotating rod is mounted opposite each other on the support frames, and a fixing frame is fixed to one end of the rotating rod. A clamping component is located on the fixing frame, and a limiting component is located inside the support frame. A stepper motor is connected to one end of the rotating rod, and a sealing door is fixed to one side of the adjustment mechanism.
[0005] Further configuration: The rollers are rotatably connected to the roller frame, the rollers roll in the slide rail, two sets of rollers are fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the transmission box, the worm gear is fixedly connected to the rotating shaft, the worm and the worm gear mesh with each other, and the worm gear is rotatably connected to the transmission box.
[0006] Further configuration: The rotating rod is rotatably connected to the support frame.
[0007] Further configuration: The clamping assembly includes a clamping screw and a limiting rod mounted on a fixed frame. A limiting spring is sleeved on the limiting rod, and a clamping plate is fixed to one end of the limiting rod. The clamping screw and the fixed frame are connected by a thread. The clamping screw and the clamping plate are rotatably connected. The limiting rod and the fixed frame are slidably connected. The two ends of the limiting spring are fixed to the fixed frame and the limiting rod, respectively.
[0008] Further configuration: The limiting component includes a fixed shaft fixed inside the support frame, a compression spring sleeved on the fixed shaft, a limiting pin fixed at one end of the compression spring, and multiple sets of limiting grooves opened opposite each other on the outer surface of the rotating rod, with the limiting pin slidably connected in the limiting groove of the rotating rod.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: By adjusting the mechanism, rotating the clamping screw of the clamping assembly causes the clamping plate to move along the limiting rod, fixing the building material on the fixed frame. The stepper motor drives the rotating rod to rotate, causing the fixed frame to rotate. During the rotation, the rotating rod moves the limiting pin and cooperates with the limiting groove on the rotating rod to achieve multi-angle adjustment of the limit, thereby meeting the needs of multi-angle combustion tests and improving the practicality of the combustion test device. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is an isometric view of a building material combustion test device according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the combustion chamber of the combustion test device for building materials products described in this utility model; Figure 3 This is a schematic diagram of the adjustment mechanism of the combustion test device for building materials described in this utility model; Figure 4 This is a cross-sectional view of the adjustment mechanism of the building material combustion test device described in this utility model; Figure 5 yes Figure 4 Enlarged view of a portion at point A; Figure 6 yes Figure 4 A magnified view of section B.
[0012] The annotations in the attached figures are explained as follows: 1. Combustion box; 2. Exhaust duct; 3. Observation window; 4. Slide rail; 5. Ignition frame; 6. Ignition device; 7. Base plate; 8. Transmission mechanism; 81. Roller frame; 82. Transmission box; 83. Roller; 84. Rotating shaft; 85. Turbine; 86. Worm gear; 87. Power assembly; 9. Adjustment mechanism; 91. Support frame; 92. Rotating rod; 93. Fixing frame; 94. Pressing assembly; 941. Pressing screw; 942. Limiting rod; 943. Limiting spring; 944. Pressing plate; 95. Limiting assembly; 951. Fixed shaft; 952. Compression spring; 953. Limiting pin; 96. Stepper motor; 10. Sealing door. Detailed Implementation
[0013] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0015] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6As shown, a combustion test device for building materials includes a combustion chamber 1, a smoke exhaust pipe 2, and an observation window 3. It also includes a slide rail 4 fixed to the bottom of the combustion chamber 1. An ignition frame 5 is fixed to one side inside the combustion chamber 1. An igniter 6 is installed on the ignition frame 5. The ignition frame 5 is used to fix the igniter 6. The igniter 6 is used to provide a fire source. A base plate 7 is provided above the slide rail 4. A transmission mechanism 8 is provided on the lower surface of the base plate 7. An adjustment mechanism 9 is provided on the base plate 7. A sealing door 10 is fixed to one side of the adjustment mechanism 9. The sealing door 10 is used to seal the combustion chamber 1.
[0016] In this embodiment: the transmission mechanism 8 includes multiple sets of roller frames 81 and a transmission box 82 fixed on the lower surface of the base plate 7. Rollers 83 are mounted opposite each other on the roller frames 81. A rotating shaft 84 is provided through the transmission box 82 for transmission. A turbine 85 is mounted on the rotating shaft 84 for driving the rotating shaft 84 to rotate. A worm gear 86 is provided opposite each other above the turbine 85 for driving the turbine 85 to rotate. One end of the worm gear 86 is connected to a power component 87 for driving the worm gear 86 to rotate. The rollers 83 are rotatably connected to the roller frames 81 and roll in the slide rail 4. Two sets of rollers 83 are fixedly connected to the rotating shaft 84. The rotating shaft 84 is rotatably connected to the transmission box 82. The turbine 85 is fixedly connected to the rotating shaft 84. The worm gear 86 meshes with the turbine 85 and is rotatably connected to the transmission box 82.
[0017] In this embodiment: the adjusting mechanism 9 includes two sets of support frames 91 fixed on the base plate 7. Rotary rods 92 are mounted opposite each other on the support frames 91. One end of each rotary rod 92 is fixed to a fixed frame 93, and the rotary rod 92 drives the fixed frame 93 to rotate. A pressing assembly 94 is provided on the fixed frame 93. A limiting assembly 95 is provided inside the support frame 91. One end of the rotary rod 92 is connected to a stepper motor 96, which drives the rotary rod 92 to rotate. The rotary rod 92 is rotatably connected to the support frame 91. The pressing assembly 94 includes a pressing screw 941 and a limiting rod 942 mounted on the fixed frame 93. A limiting spring 943 is sleeved on the limiting rod 942. A pressing plate 944 is fixed to one end of the limiting rod 942. The pressing screw 941 drives the pressing plate 944 to move, and the limiting rod 942 limits the pressure. The clamping plate 944 moves a certain distance and is used to clamp building materials. The clamping screw 941 is threadedly connected to the fixing frame 93. The clamping screw 941 is rotatably connected to the clamping plate 944. The limiting rod 942 is slidably connected to the fixing frame 93. The two ends of the limiting spring 943 are respectively fixed to the fixing frame 93 and the limiting rod 942. The limiting assembly 95 includes a fixed shaft 951 fixed inside the support frame 91. A compression spring 952 is sleeved on the fixed shaft 951. A limiting pin 953 is fixed at one end of the compression spring 952. The limiting pin 953 is used to cooperate with the rotating rod 92 to limit the angle. The compression spring 952 is used to provide the rebound force for the limiting pin 953. Multiple sets of limiting grooves are opened opposite each other on the outer surface of the rotating rod 92. The limiting pin 953 is slidably connected in the limiting groove of the rotating rod 92.
[0018] The working principle and usage process of this utility model are as follows: First, the building materials are placed on the support frame 91 of the adjustment mechanism 9. By rotating the clamping screw 941 of the clamping assembly 94, the clamping plate 944 is driven to clamp and fix the building materials. The power assembly 87 of the transmission mechanism 8 drives the worm gear 86 to rotate. The worm gear 86, through its meshing with the turbine 85, drives the rotating shaft 84 to rotate, thereby driving two sets of rollers 83 to rotate and moving the building materials into the combustion chamber 1. After the sealing door 10 seals the combustion chamber 1, the igniter 6 is started to conduct a combustion test on the building materials. When it is necessary to adjust the angle of the building materials, the stepper motor 96 of the adjustment mechanism 9 drives the rotating rod 92 to rotate, driving the fixing frame 93 to rotate. With the help of the limiting pin 953 of the limiting assembly 95, the angle can be fixed, thereby realizing a multi-angle combustion test.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A combustion test device for building materials, comprising a combustion chamber (1), a smoke exhaust pipe (2), and an observation window (3), characterized in that: It also includes a slide rail (4) fixed to the bottom of the combustion chamber (1), an ignition frame (5) fixed to one side inside the combustion chamber (1), an igniter (6) mounted on the ignition frame (5), a base plate (7) above the slide rail (4), a transmission mechanism (8) on the lower surface of the base plate (7), the transmission mechanism (8) including multiple sets of roller frames (81) and a transmission box (82) fixed to the lower surface of the base plate (7), rollers (83) mounted opposite each other on the roller frames (81), a rotating shaft (84) passing through the transmission box (82), a turbine (85) mounted on the rotating shaft (84), and a turbine (85) on the turbine (85). A worm gear (86) is provided on both sides, and a power component (87) is connected to one end of the worm gear (86). An adjustment mechanism (9) is provided on the base plate (7). The adjustment mechanism (9) includes two sets of support frames (91) fixed on the base plate (7). A rotating rod (92) is installed on the support frame (91) opposite to each other. A fixing frame (93) is fixed to one end of the rotating rod (92). A pressing component (94) is provided on the fixing frame (93). A limiting component (95) is provided inside the support frame (91). A stepper motor (96) is connected to one end of the rotating rod (92). A sealing door (10) is fixed on one side of the adjustment mechanism (9).
2. The building material combustion test device according to claim 1, characterized in that: The roller (83) is rotatably connected to the roller frame (81), the roller (83) rolls in the slide rail (4), two sets of the roller (83) are fixedly connected to the rotating shaft (84), the rotating shaft (84) is rotatably connected to the transmission box (82), the turbine (85) is fixedly connected to the rotating shaft (84), the worm (86) meshes with the turbine (85), and the worm (86) is rotatably connected to the transmission box (82).
3. The building material combustion test device according to claim 1, characterized in that: The rotating rod (92) is rotatably connected to the support frame (91).
4. The building material combustion test device according to claim 1, characterized in that: The clamping assembly (94) includes a clamping screw (941) and a limiting rod (942) mounted on the fixed frame (93). A limiting spring (943) is sleeved on the limiting rod (942). A clamping plate (944) is fixed to one end of the limiting rod (942). The clamping screw (941) and the fixed frame (93) are connected by a thread. The clamping screw (941) and the clamping plate (944) are rotatably connected. The limiting rod (942) and the fixed frame (93) are slidably connected. The two ends of the limiting spring (943) are fixed to the fixed frame (93) and the limiting rod (942) respectively.
5. The building material combustion test device according to claim 1, characterized in that: The limiting component (95) includes a fixed shaft (951) fixed inside the support frame (91), a compression spring (952) is sleeved on the fixed shaft (951), a limiting pin (953) is fixed at one end of the compression spring (952), and multiple sets of limiting grooves are opened opposite each other on the outer surface of the rotating rod (92), and the limiting pin (953) is slidably connected in the limiting groove of the rotating rod (92).